Denon MULTEQXT AVR-4306, Service Manual

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24
AVR-4306/AVC-4320
24 P74 PLD CLK O C - - - Z Main PLD / Video PLD control pin
(EPM3128ATC144-10, LC4064V-LC75TN100C)
25 P73/CTS2 AD OVER L I - Lv - - Z LCH OVERLOAD
26 P72/CLK2 DIGITAL POWER O C - - Ed Z DIGITAL power on/off switching (ON : H)
27 P71/RXD2 SCL/EDIT SCL I/O C - - Eu Z VIDEO I2C/HDMI EDIT (E2PROM) control pin
28 P70/TXD2 SDA/EDIT SDA I/O C - - Eu Z VIDEO I2C/HDMI EDIT (E2PROM) control pin
29 P67/TXD1 TXD.S O C - - Eu Z Data transfer output to outside
30 P66/RXD1 RXD.S I - Lv - Eu Z Data receive input from outside
31 P65/CLK1 SCLK I - - - Eu Z for emulator
32 P64/CTS1 BUSY O C - - - Z for emulator
33 P63/TXD0 SOMI O C - - - Z MAIN-SUB µcom comm. control pin
34 P62/RXD0 SIMO I - - - Ed Z MAIN-SUB µcom comm. control pin
35 P61/CLK0 CLKSIMO I - - - Ed Z MAIN-SUB µcom comm. control pin
36 P60/CTS0 REQSOMI O C - - - Z MAIN-SUB µcom comm. control pin
37 P57 OSR2 O C - - Eu Z A/D control pin (PCM1804) 48kHz : L
38 P56 ADC RST O C - - Eu Z AD RST
39 P55/EPM (FRASH EPM)/(AUTH) I - Lv - - Z (Rewrite boot start : L) / (Test pin : AUTH)
40 P54 P1HPRMV2 O C - - - Z HP DET control pin for HDMI IN3 terminal
41 P53 P0HPRMV2 O C - - - Z HP DET control pin for HDMI IN2 terminal
42 P52 P1HPRMV1 O C - - - Z HP DET control pin for HDMI IN1 terminal
43 P51 (P0HPRMV1) O C - - - Z Not used
44 P50/CE FRASH CE/(AVMUTE) I - - - - Z Rewrite boot program start : H input set / (Test pin : AVMUTE)
45 P47 WP2 O C - - Ed Z HDMI IN1 EDIT (24LC02) WRITE PROTECT
46 P46 WP3 O C - - Ed Z HDMI IN1 EDIT (24LC02) WRITE PROTECT
47 P45 (WP0) O C - - Ed Z Not used
48 P44 WP1 O C - - Ed Z HDMI IN1 EDIT (24LC02) WRITE PROTECT
49 P43 INT2 I -
E
↓
L
- - Z HDMI receiver (SiI9031) INT (HDMI IN2/3)
50 P42 INT1 I -
E
↓
L
- - Z HDMI receiver (SiI9031) INT (HDMI IN1)
51 P41 SCDT2 I - - - - Z HDMI receiver (SiI9031) SCDT output (HDMI IN2/3)
52 P40 SCDT1 I - - - - Z HDMI receiver (SiI9031) SCDT output (HDMI IN1)
53 P37 HDMI R RST2 O C - - Ed Z HDMI receiver (SiI9031) reset (HDMI IN2/3)
54 P36 HDMI R RST1 O C - - Ed Z HDMI receiver (SiI9031) reset (HDMI IN1)
55 P35 HDMI T RST O C - - Ed Z HDMI TRANSMITTER reset (SiI9030)
56 P34 HDMI SENS I - Lv - - Z HDMI input signal detect input
57 P33 FGAIN O C - - Ed Z FGAIN control pin
58 P32 DACMDI/ZDACDATA O C - - - Z DAC control pin (PCM1791ADBR) / ZONE DAC controlpin (AK4385ET)
59 P31 DACMC/ZDACCLK O C - - - Z DAC control pin (PCM1791ADBR) / ZONE DAC controlpin (AK4385ET)
60 VCC VCC - - - - - - +5V
61 P30 DACMS O C - - - Z DAC control pin (PCM1791ADBR)
62 VSS VSS - - - - - - GND
63 P27 DACRST O C - - - Z DAC control pin (PCM1791ADBR)
64 P26 ZDACRST O C - - - Z ZONE DAC controlpin (AK4385ET)
65 P25 Z2DACCS O C - - - Z ZONE DAC controlpin (AK4385ET)
66 P24 Z3DACCS O C - - - Z ZONE DAC controlpin (AK4385ET)
67 P23 (SEL4FS) I/O C - - - Z Not used
68 P22 (SEL1FS) I/O C - - - Z Not used
69 P21 (INIT) I/O C - - - Z Not used
70 P20 DRECINH O C - - Ed Z Digital RECOUT INH control pin
71 P17/INT5 DRECC O C - - - Z Digital RECOUT switching
72 P16/INT4 DRECB O C - - - Z Digital RECOUT switching
73 P15/INT3 DRECA O C - - - Z Digital RECOUT switching
74 P14/D12 DINC O C - - - Z Digital input switching
75 P13/D11 DINB O C - - - Z Digital input switching
76 P12/D10 DINA O C - - - Z Digital input switching
77 P11/D9 VPP O C - - Eu - Normal : H, Writing flash ROM for DSP : L
78 P10/D8 DIR3 CKST O C - - Eu Z DIR control pin (LC89057W-VF4-E)
79 P07/D7 DIR2 CKST O C - - Eu Z DIR control pin (LC89057W-VF4-E)
80 P06/D6 DIR1 CKST O C - - Ed Z DIR control pin (LC89057W-VF4-E)
81 P05/D5 INT3 I -
E
↓
L
- Ed Z DIR control pin (LC89057W-VF4-E)
82 P04/D4 INT2 I -
E
↓
L
- Eu Z DIR control pin (LC89057W-VF4-E)
Pin
No.
Pin Name Symbol I/O Type Det
Op
(Int.)
Op
(Ext.)
Res FUNCTION